Frequent dry cough in the elderly while sleeping should first find the cause of dry cough, and then treat the symptoms. Common causes of dry cough are: left heart failure, chronic obstructive pulmonary disease (COPD), cough variant asthma. 1. Left heart failure: heart failure causes lung stagnation or edema, can also appear dry cough, and more likely to occur at night when sleeping, can be relieved when sitting up. Treatment should be low-salt diet, pay attention to rest, drugs can be given diuretics, angiotensin-converting enzyme inhibitors, β-receptor antagonists, positive inotropic agents, etc. to improve symptoms and control heart failure. 2. Chronic Obstructive Pulmonary Disease (COPD): COPD is mostly seen in middle-aged and old people, and can be manifested as nocturnal cough. Treatment should first quit smoking, can use salmeterol, budesonide and other drugs to control symptoms. 3. Cough variant asthma: dry cough at night can be considered cough variant asthma. Asthma patients should first identify and reduce exposure to allergens, etc. Drugs such as budesonide and salbutamol can be used to relieve and control symptoms. Elderly people sleep frequently dry cough may have other causes, such as eosinophilic bronchitis, gastroesophageal reflux stimulation cough, nasal secretion reflux stimulation, but also pay attention to exclude chronic bronchitis, bronchial dilatation position after the change of sputum flow will stimulate the mucous membrane caused by cough. The above drugs need to be used in accordance with the doctor’s instructions, if the above symptoms continue to be unrelieved, you should immediately go to the local hospital, improve the relevant examination, a clear diagnosis, and then symptomatic treatment.